I sweat A LOT, and in squash, by about the third game, the loss of grip is significant. The RESINPAD makes all the difference. Only one side of the pad is porous (the side without the RESINPAD on it, IIRC). Wipe your hand and racquet grip with a towel, then manipulate the RESINPAD with the porous side facing your palm, and you feel the lightest flurry of powder fall onto your hand. It's remarkable what a difference this thing makes.

Used this resin to provide more grip to original Yonex grip on badminton racket.Found that resin provided more grip and kept slightly tacky when sweating . Lent to another member of club who also had grip problems and was told that they also found resin beneficial.Since replacing grips to another type I have not found it necessary to use the resin but if you need a stop gap solution and grip is too smooth and slips out of hand due to sweat this item is ideal to have to hand (even if you help someone else out on a club night).One thing that I would like to point out though is that you may find that your grip may wear quicker if using the resin due to the tacky nature of sweat and resin.I have also found that the best way to apply the resin is to wait until you have warmed up and start to sweat. Then get resin pad and tap it around the grip.Once you have done this evenly spread resin around grip with racket hand.Grasp and ungrasp grip several times. You are now ready to play!